Localization of sleep spindles, k-complexes, and vertex waves with subdural electrodes in children.
Publication/Presentation Date
8-1-2014
Abstract
PURPOSE: To describe for the first time in children the localization of sleep spindles, K-complexes, and vertex waves using subdural electrodes.
METHODS: We enrolled children who underwent presurgical evaluation of refractory epilepsy with subdural grid electrodes. We analyzed electroencephalogram data from subdural electrodes and simultaneous recording with Cz scalp electrode. Sleep spindles, K-complexes, and vertex waves were identified and localized based on their morphology on the subdural electrodes.
RESULTS: Sixteen patients (9 boys; age range, 3-18 years) were enrolled in the study. The inter-rater reliability on identification and localization of maximal amplitude was high with an intraclass correlation coefficient of 0.85 for vertex waves, 0.94 for sleep spindles, and 0.91 for K-complexes. Sleep spindles presented maximum amplitude around the perirolandic area with a field extending to the frontal regions. K-complexes presented maximum amplitude around the perirolandic area with a field extending to the frontal regions. Vertex waves presented maximum amplitude around the perirolandic areas.
CONCLUSIONS: In our series of pediatric patients, sleep spindles, K-complexes, and vertex waves were localized around the perirolandic area.
Volume
31
Issue
4
First Page
367
Last Page
374
ISSN
1537-1603
Published In/Presented At
Pinto, A. L., Fernández, I. S., Peters, J. M., Manganaro, S., Singer, J. M., Vendrame, M., Prabhu, S. P., Loddenkemper, T., & Kothare, S. V. (2014). Localization of sleep spindles, k-complexes, and vertex waves with subdural electrodes in children. Journal of clinical neurophysiology : official publication of the American Electroencephalographic Society, 31(4), 367–374. https://doi.org/10.1097/WNP.0000000000000071
Disciplines
Medicine and Health Sciences
PubMedID
25083850
Department(s)
Department of Medicine
Document Type
Article